Chrysocolla (with Malachite / Copper Ore Matrix)
Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O / Malachite Cu2CO3(OH)2
mineral
Category
Sedimentary (Secondary Formation)
Browse sedimentary (secondary formation) specimens identified by the Rock Identifier community.
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Jasper with Purple Fluorite or Chalcedony
Silicon Dioxide (SiO2) with mineral inclusions
sedimentary
Quartzite with Druzy Quartz
Silicon Dioxide (SiO2)
metamorphic
Agate Geode
Silicon Dioxide (SiO2) - Chalcedony / Quartz Variety
Mineral
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
sedimentary
Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)
Calcite
Mineral
Heulandite with Stilbite
Heulandite-Ca ((Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O) and Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O)
mineral
Sandstone (Ferruginous)
Clastic sedimentary rock (SiO2 with Fe2O3)
sedimentary
Celestite (Celestine)
Strontium Sulfate (SrSO4)
mineral
Milky Quartz with Chlorite / Mica inclusions
Silicon Dioxide (SiO2) with phyllosilicate inclusions
igneous
Rough Quartz in Pegmatite Matrix
Quartz (Silicon Dioxide - SiO2) in Granitic Pegmatite
igneous
Ferruginous Quartz
Iron-stained Quartz (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
mineral
Blue-green copper mineral specimen, likely chrysocolla or turquoise
Probable chrysocolla, hydrated copper phyllosilicate (Cu₂H₂Si₂O₅(OH)₄·nH₂O); turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O, is an alternative
mineral
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide) - SiO2
mineral
Quartz pebble
Silicon Dioxide (SiO2)
mineral
Weathered jasper-rich ironstone
Brecciated jasper/chert with iron oxides and hydroxides (SiO₂ with hematite, goethite, and limonite)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Quartz in Matrix
Silicon Dioxide (SiO2) in host rock matrix
mineral
Turquoise and Hematite
Turquoise: CuAl6(PO4)4(OH)8·4H2O; Hematite: Fe2O3
mineral
Banded Agate (specifically Lake Superior Agate type)
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Goethite (likely as part of Limonite/Ironstone)
Goethite (α-FeOOH)
Mineral
Botryoidal Chalcedony (Agate/Carnelian)
Chalcedony (SiO2)
mineral
Black Marble
Recrystallized Carbonate Rock (CaCO3)
metamorphic
Hematite
Iron Oxide (Fe2O3)
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Psilomelane (Black Hematite varietal)
Barium Manganese Oxide (Ba,H2O)2Mn5O10
mineral
Turquoise
Turquoise, CuAl6(PO4)4(OH)8·4H2O
mineral
Native Copper (in coinage alloy)
Copper (Cu)
mineral
Quartz with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
mineral
Dioptase
Dioptase (CuSiO3 · H2O)
mineral
Native Gold Nugget
Native Gold (Au)
mineral
Limonite (Iron Ore)
Limonite (an FeO(OH)·nH2O mineraloid, not a true mineral due to variable composition)
Mineral
Turquoise (beads)
Turquoise; CuAl6(PO4)4(OH)8·4H2O
Mineral
Smoky Quartz / Chalcedony
Silicon Dioxide (SiO2)
mineral
Native Copper
Copper (Cu)
mineral
Optical Calcite
Calcium Carbonate (CaCO3)
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Limonite / Ironstone
Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O
mineral
Limonite
Limonite (Hydrous iron oxides, predominantly Goethite FeO(OH)·nH2O)
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Fossil Shell
Invertebrate fossil (Mollusca)
fossil